Pulse

Flu fighter

Pulse editor

As a Centers for Disease Control and Prevention epidemiologist working with the World Health Organization, Mark Simmerman has just moved to the hot spot for avian flu. Vietnam has had the highest number of human cases of the dreaded disease, and no one knows exactly why. Full Article

The golden hour

Pulse editor

Flight nurses and paramedics call it the golden hour. Most trauma and critical patients need to receive medical attention within 60 minutes to have the best chance of survival. Fighting the clock is always part of the job when rescue helicopter crews get a call. Full Article